Diff being reverted:
diff --git a/index.mdwn b/index.mdwn
index 313dac7..a4d46cc 100644
--- a/index.mdwn
+++ b/index.mdwn
@@ -41,7 +41,7 @@ Anyone can contribute. To add your suggestions:
 ## Visibility
 - Translate the [English Wikipedia page](https://en.wikipedia.org/wiki/Nesin_Mathematics_Village) (quite complete) to [the Turkish one](https://tr.wikipedia.org/wiki/Nesin_Matematik_K%C3%B6y%C3%BC) (quite empty but [very visited](https://pageviews.wmcloud.org/?project=tr.wikipedia.org&platform=all-access&agent=user&redirects=0&range=this-year&pages=Nesin_Matematik_K%C3%B6y%C3%BC), and its content is reused by basicly everyone). Idealy, translate in other langages too (French will be done soon).
 - Upload high quality media content on [Commons](https://commons.wikimedia.org/wiki/Category:Nesin_Mathematics_Village). It has to be under [creative commons licence](https://en.wikipedia.org/wiki/Creative_Commons_license), best way for people to reuse it.
-  - There are very cool pictures on the [website Gallery](https://nesinkoyleri.org/en/gallery/), but the licence is not indicated. It would be nice if there was a little mention somewhere, like "this is available under licence [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)." Then it can be uploaded to Commons.
+  - There are very cool pictures on the [website Gallery](https://nesinkoyleri.org/en/gallery/), but the licence is not indicated. If the authors are OK, it would be nice if there was a little mention somewhere, like "this is available under licence [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)." Then it can be uploaded to Commons.
 - Some people are curious of how the village is organized, how decisions are taken, etc... If it's not confidential, could it be explicited somewhere ?
 
 ## Accessibility